Apparatus for operating hinged doors



H. G. AlNsWoRTl-l APPARATUS FOR OPERATING HNGED DOORS Filed March 24. 1924 2 Sheets-Sheet l Aug. 3 1926. 1,594,514

I IIJIAYIIIIIIIII v` y 0 j Aug. 3 1926. 1,594,514 H. G. AINSWORTH APPARATUS FOR OPERATING HINGED DOORS Filed March 24. 1924 2 Sheets-Sheet 2 /ALv///As ws* Patented Aug. 3, v1926.

UNITED STATES HARRY G. AINSWORTH, OF ENGELAND, INDIANA.

APPARATUS FOR OPERATING HINGED DOORS. I

applicati@ mea nai-ciau, 1924. seriali my. 701,612.

This invention relates to` electrically .oper ated devices for opening and closlng hmged doors and consists in the devices and combinations of devices herein illustrated described and claimed. i 7

The principal object of the invention is to provide an apparatus which will include an operating/motor, means tol stop the motor at a particular time and simultaneously reverse the motor lield, so that when again set in motion, the motor shaft will travel in the opposite direction. /Thus, `the operator, to open a closed door, will simply push an operating switch to throw on the current, and the apparatus will open the door, and he will merely push the same switch to cause the apparatus to close the door. This object and the advantages of my invention will be more manifest as I proceed .with my speciication. l

In the accompanying drawings:

Fig. lillustrates in elevation, a pair of hinged doors to which the apparatus of my invention has been applied, one on each door.

Fig. 2 is a vertical, sectionalview, enlarged, of a portion -of lthe apparatus, the section being taken in the plane of the dotted line 2 2 shownon Fig. v

Fig. 3 is a horizontal, sectional view, also enlarged, of the housing attached to the door, showing the motor and connected parts in plan view, the section being taken in the plane of the dotted line 3 3 shown on'Fig. 2.

Fig. 4 is a fragmentary side view ofthe cam arrangement employed in the apparatus.

Fi 5 is a plan view of the apparatus, showing the attachment to the door-and the iixed support', the latter being in section.

Fig. 6l 1s a sideview of the same with the door and support in vertical section, the section-*being in the plane of the dotted line 6-6 shown on Fig. 5.

Fig. 7 is a bottom view, partly in section,`

of one of the swinging arms, lookin upward in the plane indicated by the otted line 7--7 on ig. 6.

Fig. 8 is a diagrammatic view of an electric circuit for operating the device.

In that formn which I have illustrated my invention, A, A are doors closing a -suitable opening in a fixed support B, and

C, C are the side members of the door frame to which the doors are hinged at a, a. D, D, are housings secured to the doors by bolts 1 or other suitable means, within and to which nearly all of the operating parts are mounted. E designates ,the electric circuit as a whole.

. within the housing D is a motor My auch will rotate its shaft in one direction .until motor M 'may be of standard conventional type, and per se constitutes no part of my invention except as a unit, no further descri tion of the same is required.

T e motor shaft 2 carries on its extended end a\worm 3 in mesh withA a worm gear 4 on a shaft 5 vertically and rotatively journalled in the housing D. Upon the upper extended end of thisl shaft 5 is an arm 6, the outer end .of which is pivotally connected with the swinging end of anotherv arm 7'. This arm 7 is pivotally mounted to a bracket 8 secured to the su port B.

The location of the brac et 8 with relation to the location ofthe housing D on the door will. be such that when the motor rotates the shaft 5, the arm 6 will swin to the right or left as the -case may be, and in` turn swing the'arm 7 in the same ,1 direction, and since one end of the arm 7 is pivotally secured through its bracket 8 to the fixed support, it followsv that the door will swing on its hinges to open or to close, as the casemay be.

The housing D is provided with a flange bearing 9 on an integral bracket 10, on which bracket are mounted two swtches 11 and 12 which are inthe motor circuit E. These switches have projecting operating knobsl or buttons 13 and 14 respectively. A slidable bar 15 is provided with an elongated lslotted portion 16 at one end where it surrounds and hasbearing upon a .cylindrical projection 18 of thehousing.V The'other end 17 is mounted in the llange bearing 9 of bracket 10. Intermediate the portions 16 and 17 thisv slidable bar 15 is provided with two apertures 19 and 20 to engage the switch knobs 13 and 14 respectively. Thus when the bar 15 is moved in one direction, say to the right, the switch knobs 13l and 14 are simultaneouslymoved in the same direction, and the latter are moved to the left when the bar 15 is moved to the left.

he bar`15 is provided with two spaced apart, downwardly rojecting arms 21 and 22 carrying inwar ly directed adjusting screws 23 and 24 respectively. The shaft 5. projectsV downwardly through the cylinupon said projecting portion o/cams/ 00 its -field is reversed and will then rotatefj'its l shaft in the opposite direction.` As the drical portion 17 of the housing and carries Y Y and 26. The cam 25=is inthe same horizontal plane as the screw 24, the end of which rests against the face of the cam. The cam 26 is in a lower plane so that its face will bear against the end of the screw 23.- The cams are so positioned on the shaft and so adjusted by the screws 23 and 24.- with relation to the arms 21 and 22, that one cam will move the slidable bar to the right and the other cam move said bar to the left. Referring to the circuit E of Fig. 8, the line contains two or more operating switches S, R, placed at locations convenient for the persons who may desire to operate my device to open or close the doors A, A. One line e runs direct to the motors M. The other line through switches S, R, to the switches 12 of each device by the lines X and Y. Thus switches S, R and 12 open and close the circuit while switches 11, as before stated, operate to reverse the ield of the motor; switches 11 and 12 being simultaneously actuated by the bar 15. l

If, when the door is in process of being swung on its hinges, either toopen or to close the same, any unusual jar should occur, such as the .door bein struck'by a moving vehicle, injui'v mig t occur tothe operating device. o guard a nst this, I rovide a butler arran ement etween the ousing and the arm 6. y referring to Fig. 7, it will be seen that the arm 6 is provided on its under side with a pair of a ertured lugs 27, 27, the a ertures of whic act as bearings for a s 'dable bolt member .28. Surrounding the bolt is a spring 29, one end of which bears upon the inner surface of one of the lugs 27 andthe other end a inst a nut or collar 30. Immediately be ow the arm 6 is a disc or collar 31 which is keyed upon the shaft 5. At one point in its periphery, this disc is provided with a notch 32,A the sides of which flare so as to form in effect a cam surface. In the normal osition of the device, the end of the bo t 28 will rest in this cam notch 32. The tension of the spring 29 is such that, notwithstandin the fact that the arm 6 is loosely mounte upon the shaft 5, the rotation of said shaft 5 carrying with it the fixed cam disc 31, will, through said bolt 28, swing the arm 6 in the proper direction, as hereinbefore described. On the other hand, in the event of any sudden jar to tne door, there wll be obtained a certain amountof yield, or lost motion, or relative movement between the'shaft 5 and the arm 6, by reason ofthe fact that in the rotation of the shaft 5 vand disc 31, the end of the bolt 28 will instantly ride over the cam surface of the notch 32 and rest u e spring 29 is suiciently coin ressed for this purpose by reason of the su denness of the Jar. Any further rotation of the shaft l 5 will result 'in the spring forcing the bolt n the concentric margin of the disc 31. v

y h 1,594,514.l

connected to the swingable end of said first mentioned arm, operative connections between the motor and said second arm for actuating the latter, an electric circuit provided with a motor reversing switch and a controlling switch, and means for simultaneously operating bothswitches.l

2. An apparatus for operating hinged doors comprisin an arm pivotally secured at one -end to a xed support, a hinged door, a reversible electric motor on the door, a rotatable shaft operatively connected with said motor, .a' second arm mounted at one end upon said shaft and 'pivotall connected to the swingable end of said rst mentioned arm, an electric circuit provided with amotor reversing switch and a controlling switch, and means operatively connected with said slhaft for simultaneously operating both switches.

3. An apparatus for yoperating hinged doors comprising an arm pivotally secured at one end to a fixed support, a hinged door,

a reversible electric motor on the door, a rotatable shaft o ratively connected with the motor, a seconearm mounted on said shaft and 'pivotally connected at one end to the swingableend of said first mentioned arm, anelectric circuit provided with amotor reversing switch and a. controlling switch, and means for simultaneously operating `both switches, said means including a movable arm operatively connected with each switch, lugs on said arm and cams on said shaft adapted to contact with the lugs.

4. In an ap aratus for operating hinged doors, a hinged door, a housing mountedon the door, a rotatable shaft therein, a reversing motor in said housing operatively connected to actuate said shaft, an electric circuit, a revers' vswitch and an operating switch in the circuit located adjacentthe motor, and o rative connections between the rshaft an said switches for simultaneously and automatically operating both switches.

izo p switch in the circuit located adjacent the motor, and operative connections betweer the shaft and said switches for simultaneously and automatically operating both -switches, said switch operating connections including a slidable bar, cams on said rotatable shaft, opposed lugs on the bar, and means on the shaft for alternately engaging said lugs to actuate said bar.

6. In an apparatus for operating hinged doors, a housing mounted on the door, a ro' tatable shaft therein, a reversing motor associated with the housing operatively connected to rotate said shaft, an electric circuit, a reversing switch and an operating switch in the circuit located adjacent the motor, a. slidable bar operatively connected with said switches, spaced apart lugs on said bar, cams mounted upon said shaft in different planes and intermediate said lugs and adjustable means on each lug positioned in the path of rotation of its proper cam to be contacted thereby.

7. An apparatus for operating hinged doors comprising an arm pivotally secured at one end to a fixed support, an electric m0- tor on the door, a second arm one end of which is pivotally connected to the swingable end of said first mentioned arm, means for communicating motion from the motor to the second arm, including a shaft on which said second arm is loosely mounted,

yielding locking connection between said arm and shaft, an electric circuit rovided with a motorreversing switch an a controlling switch and means for simultaneously operatingboth switches.

An apparatus for operating hinged doors comprising an arm pivotally secured at one end to a fixed support, anelectric motor on the door, a second arm one end of which is pivotally connected to the swing` able end of said first mentioned arm, means for communicating motion from the motor to said second arm, comprising a rotatable shaft on which said second arm is loosely mounted, a notched disc fixedlymounted on the shaft,`a yielding locking bolt on said second arm and engaged, normally, in said notch, and gearing connecting said shaft and the motor shaft, an electric circuit provided with a motoi` reversing switch and a controlling switch, and means for simultaneously operating both switches. v

In testimony that I claim the fore oing as my invention I aliix my signature is 18th day of March, 1924.

HARRY G. AIN SWORTH. 

